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67 lines
1.6 KiB
TypeScript
67 lines
1.6 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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import { test, assert, assertEqual } from "./test_util.ts";
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test(function atobSuccess() {
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const text = "hello world";
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const encoded = btoa(text);
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assertEqual(encoded, "aGVsbG8gd29ybGQ=");
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});
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test(function btoaSuccess() {
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const encoded = "aGVsbG8gd29ybGQ=";
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const decoded = atob(encoded);
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assertEqual(decoded, "hello world");
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});
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test(function btoaFailed() {
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const text = "你好";
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let err;
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try {
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btoa(text);
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} catch (e) {
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err = e;
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}
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assert(!!err);
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assertEqual(err.name, "InvalidInput");
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});
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test(function textDecoder2() {
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// prettier-ignore
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const fixture = new Uint8Array([
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0xf0, 0x9d, 0x93, 0xbd,
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0xf0, 0x9d, 0x93, 0xae,
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0xf0, 0x9d, 0x94, 0x81,
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0xf0, 0x9d, 0x93, 0xbd
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]);
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const decoder = new TextDecoder();
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assertEqual(decoder.decode(fixture), "𝓽𝓮𝔁𝓽");
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});
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test(function textDecoderASCII() {
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const fixture = new Uint8Array([0x89, 0x95, 0x9f, 0xbf]);
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const decoder = new TextDecoder("ascii");
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assertEqual(decoder.decode(fixture), "‰•Ÿ¿");
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});
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test(function textDecoderErrorEncoding() {
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let didThrow = false;
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try {
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const decoder = new TextDecoder("foo");
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} catch (e) {
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didThrow = true;
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assertEqual(e.message, "The encoding label provided ('foo') is invalid.");
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}
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assert(didThrow);
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});
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test(function textEncoder2() {
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const fixture = "𝓽𝓮𝔁𝓽";
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const encoder = new TextEncoder();
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// prettier-ignore
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assertEqual(Array.from(encoder.encode(fixture)), [
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0xf0, 0x9d, 0x93, 0xbd,
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0xf0, 0x9d, 0x93, 0xae,
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0xf0, 0x9d, 0x94, 0x81,
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0xf0, 0x9d, 0x93, 0xbd
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]);
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});
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